c# - How to call Thread.Join for all threads in Win Forms -


i have windows form listed below. has multiple background threads, sta, etc… have function named myfinalpiece(). need join threads associated form before calling method.

how can call thread.join here threads (irrespective of how many threads there)?

note: if add new thread in future call should work without break.

code

public partial class form1 : form {     int lognumber = 0;     public form1()     {         initializecomponent();     }      private void form1_load(object sender, eventargs e)     {         writelogfunction("**");          //......other threads         //..main thread logic         //all threads should have been completed before this.         myfinalpiece();     }      private void myfinalpiece()     {      }      private void writelogfunction(string strmessage)     {         string filename = "mylog_" + datetime.now.tostring("yyyymmmmdd");         filename = filename + ".txt";         using (streamwriter w = file.appendtext(filename))         {             w.writeline("\r\n{0} ..... {1} + {2}ms >>> {3}  ", lognumber.tostring(), datetime.now.tolongtimestring(), datetime.now.millisecond.tostring(), strmessage);             lognumber++;         }     } }

may can use tasks shown:

writelogfunction("**");  //......other threads var task1 = task.run(() => this.someotherthread1()); var task2 = task.run(() => this.someotherthread2()); //..main thread logic  task.waitall(task1, task2); //all threads should have been completed before this.   myfinalpiece();

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